fix zfs boot on mac vm

nixos/boxes/airnix/README.md

@@ -1,5 +1,6 @@
 ## this is a VM on mac book air M1, so aarch64
 
+- VM needs 4GB RAM, 64GB disk space
 - boot from minimal nixos installer image
 
   > 604ad1abbcfdd93bc6258be695a7d289756921c0e6d9b4f3afb8e98c823052ec nixos-minimal-24.05.2780.53e81e790209-aarch64-linux.iso
@@ -7,4 +8,4 @@
 
 - launch in paralells
 - change root password
-- From macbook host `nix run github:numtide/nixos-anywhere -- root@IP --flake '.#airnix'`
+- From macbook host `nix run github:numtide/nixos-anywhere -- root@10.211.55.6 --flake '.#airnix' --build-on-remote`

nixos/boxes/airnix/boot.nix

@@ -7,5 +7,5 @@
 }: {
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
-  boot.kernelPackages = pkgs.linuxPackages_latest;
+  boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
 }

nixos/boxes/airnix/default.nix

@@ -13,6 +13,7 @@
     ./disks.nix
   ];
   networking.hostName = "airnix";
+  networking.hostId = "92309ac5";
 
   zramSwap = {
     enable = true;

nixos/boxes/airnix/disks.nix

@@ -30,7 +30,6 @@
     zpool = {
       zroot = {
         type = "zpool";
-        mode = "mirror";
         rootFsOptions = {
           compression = "zstd";
         };